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obj_write_txn_t

Struct obj_write_txn_t 

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pub struct obj_write_txn_t { /* private fields */ }
Expand description

Opaque write-transaction handle.

Holds:

  • inner: a 'static-erased WriteTxn borrowing from the shared env. Real lifetime is bound to the _db keepalive below; the erasure is sound because the two fields drop in the order declared (Rust guarantees in-declaration-order field drop) and the txn never escapes as 'static.
  • _db: an Arc keepalive on the parent [obj::Db]; the env referenced by inner lives at least as long as this Arc.

ManuallyDrop on inner lets us explicitly drop the txn (via obj_txn_commit / obj_txn_rollback / the handle’s Drop) before the Arc is released — order matters for soundness.

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impl Drop for obj_write_txn_t

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fn drop(&mut self)

Executes the destructor for this type. Read more
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fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)
Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned. Read more

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

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impl<T> Borrow<T> for T
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fn borrow(&self) -> &T

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impl<T> BorrowMut<T> for T
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fn borrow_mut(&mut self) -> &mut T

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
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fn into(self) -> U

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impl<T, U> TryFrom<U> for T
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type Error = Infallible

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type Error = <U as TryFrom<T>>::Error

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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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fn vzip(self) -> V